Here are Chrome Lighthouse scores for three top sites: Uber, AirBnB, and Pizza Hut. Testing is conducted with Mobile selected:
The scores don't seem to match up with the actual mobile page load speed - and seem impossibly low for top high-traffic sites like these.
UBER
AirBnB
PIZZA HUT
Is Chrome Lighthouse broken for mobile testing?
This is working as expected. Lighthouse, by default and with the settings you showed, throttles the network speed and CPU (simulated). See https://github.com/GoogleChrome/lighthouse/blob/master/docs/throttling.md